CN105945117A - Strong spinning-forming method and device for high-temperature alloy reducer - Google Patents
Strong spinning-forming method and device for high-temperature alloy reducer Download PDFInfo
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- CN105945117A CN105945117A CN201610304747.5A CN201610304747A CN105945117A CN 105945117 A CN105945117 A CN 105945117A CN 201610304747 A CN201610304747 A CN 201610304747A CN 105945117 A CN105945117 A CN 105945117A
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- pipe
- temperature alloy
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- tail top
- high temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a strong spinning-forming method and device for a high-temperature alloy reducer. The method includes the steps that firstly, a high-temperature alloy pipe is fixed to a spindle, axial jumpiness is measured, the pipe is controlled to be stably mounted on the spindle, and then a core bar is mounted on a tailstock and inserted into a pipe blank; afterwards, a proper spinning-forming process is selected, movement of the tailstock is used for exerting pull force on the pipe blank, the forming length and thickness of the pipe during spinning forming are controlled, and at the moment, spinning forming of the high-temperature alloy reducer from the high-temperature alloy material is achieved under the feed action of a rotating wheel and the pull force of the tailstock; and finally the multi-section reducer with the uniform wall thickness is obtained.
Description
Technical field
The invention belongs to metal complexity hollow unit advanced manufacturing technology field, particularly to high temperature alloy mould pressing side
Method and device.
Background technology
High temperature alloy reducer pipe is widely used in the important engineering such as nuclear energy engineering, Aero-Space because having good high-temperature behavior
Field.High-temperature alloy material such as GH625 is owing to having elevated temperature strength, good decay resistance and the non-oxidizability of excellence
Can, in the field such as Aero-Space, military and national defense, application is more and more extensive.
Existing reducer pipe forming mode is mainly by the pipe welding of different-diameter being formed.It is many that welding shapes easily appearance
Plant defect such as: weld crack, lack of penetration, slag inclusion, pore and weld appearance shortcoming etc..These defects can reduce weld seam and cut
Area, reduces bearing capacity, produces stress and concentrates, causes crackle.When needing to spend substantial amounts of in actual production process
Between and cost butt welded seam detect, and then improve production cost.
Spinning be a kind of combine forging, extrude, stretch, bend, the few of process characteristic such as looping mill rolling and rolling adds without cutting
The advanced technologies of work.As a branch of Plastic Forming, have that flow of metal condition is good, stock utilization is high, flexible
The features such as good and low cost.It is suitable for processing various metals material, is a kind of economy, quick shaping Thin-wall Revolving Part
Method for optimizing.In light industry, not only occupy critical role, and in Aeronautics and Astronautics, apply wider light alloy material
Shaping have also been obtained extensively application.
Owing to existing rotary pressure technology cannot meet tail top movement velocity or the controlled requirement of tail top power, therefore prepare high temperature alloy
Reducer pipe is mainly shaping, i.e. conventional spinning on conventional spinning machine and shapes, and uses this traditional method, Jiu Huicun
In following shortcoming:
(1) relatively big due to high temperature alloy reducer pipe axial length value, therefore shape on conventional spinning machine, its axial runout is big,
Reducer pipe formed thereby is easily generated bending, and glacing flatness is poor, and it is limited that this results in high temperature alloy reducer pipe shaping length, nothing
Method meets market demands.
(2) high temperature alloy reducer pipe is in spin-forming procedure, due to the axial flow difficulties of material, and material or to thickness side
To flowing, or local integrally bending deformation.This quality resulting in drip molding and serviceability are substantially reduced, and limit
The use of high temperature alloy reducer pipe.
Summary of the invention
The present invention is directed to the drawback of existing preparation method, it is proposed that new manufacturing process.Use spinning tail top movement velocity or
Power controlled method in tail top prepares the high temperature alloy reducer pipe of uniform wall thickness, function admirable, efficiently solves actual application
Middle high temperature alloy reducer pipe, the problem that in spin-forming procedure axial runout is big, the difficult control of wall thickness and axis are easily bent.
A kind of high temperature alloy reducer pipe shear spinning forming device, including: clamping device, spinning roller and tail top, clamping fills
Putting for pipe clamping is fixed on main shaft, in forming process, pipe is followed main shaft and is rotated；Described spinning roller is along pipe axle
To moving back and forth, pipe being carried out mould pressing, spinning roller is back and forth a passage along pipe axially-movable one；Described tail top
Equipped with plug, described plug inserts inside pipe, and in spin-forming procedure, the internal diameter of described plug and pipe forms interference
Coordinating, described tail top at least starts to provide pulling force for pipe vertically second passage, its start to provide pulling force passage,
And its axially-movable speed pulling force size pre-sets, by the pulling force on tail top by pipe axial elongation, control tail top
Movement velocity reaches to control the effect of wall thickness.
The method carrying out high temperature alloy reducer pipe mould pressing according to described device, by following comprehensive forming step in addition
Realize:
The first step, by high temperature alloy pipes clamping to main shaft, controls tubing and is arranged on smoothly on main shaft；
Second step, installs tail top at pipe tail end, and tail is equipped with plug on top, controls pipe in forming process with tail top
Axial runout；
3rd step, selects suitable spinning roller, spinning path and tail top pull power or speed, high temperature alloy pipes is carried out multi-pass
Mould pressing, at least the second passage, tail backs down the beginning and pipe is applied axial tension, controls the axial flowing of material；
At shaping position oil addition, reduce friction and reduce forming temperature；
4th step, release, opening mold, take out the part shaped；
5th step, by obtained part line cutting excision clout, finally gives high temperature alloy reducer pipe.
Described method, in the 3rd step, tail top axial velocity is controlled, and pipe is applied axial tension, controls the axle of material
To flowing.
Described method, the tail top direction of motion is consistent with material flow direction.
Described method, applies axial tension by tail top to pipe, improves the material stress state when flowing, thus
Excessive material is avoided to thicken or axis bending.
Described method, final drip molding uniform wall thickness and with the error of original mother metal wall thickness within ± 5%.
Beneficial effect:
1, the present invention is that high temperature alloy reducer pipe provides a kind of new manufacturing process and device；
2, present invention efficiently solves that high temperature alloy reducer pipe mould pressing axial runout is big, wall thickness problem rambunctious,
Simultaneously for improve high temperature alloy forming property, raising forming quality etc., there is great importance；
3, the inventive method simple possible, production efficiency is high, has important at the engineering field such as Aeronautics and Astronautics, military project
Engineer applied be worth and obvious economic benefit.
Accompanying drawing explanation
Fig. 1, two sections of reducer pipe mould pressing principle schematic of high temperature alloy.
1, chuck, 2, sleeve, 3, nut, 4, spinning roller, 5, pipe, 6, plug, 7, tail top, 8,
Tail top cover；
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
The high temperature alloy reducer pipe shear spinning forming device that following example of the present invention use, including: chuck 1, sleeve
2, nut 3, spinning roller 4 and tail top, chuck 1, sleeve 2, nut 3 for pipe clamping is fixed on main shaft,
Pipe is followed main shaft under chuck drives and is rotated；Described spinning roller carries out rotary press modelling along pipe axially reciprocating to pipe,
Described tail is top-loaded with plug, and described plug inserts inside pipe, in spin-forming procedure, and described plug and the internal diameter of pipe
Can form interference fit, described tail top can provide pulling force, its axially-movable speed and the big I of pulling force for pipe vertically
To pre-set, can reach to control wall thickness by pipe axial elongation, the movement velocity controlling tail top by the pulling force on tail top
Effect.
Embodiment 1
The first step, by the GH625 high temperature alloy pipes of long 260mm, diameter 12mm, wall thickness 1mm by chuck, set
Wound packages clips on main shaft, measures axial runout, controls tubing and is arranged on smoothly on main shaft；
Second step, installs tail top fixing device, limits the axial runout of high temperature alloy pipes, and arranging the speed of mainshaft is
600n/min；Tail plunger tip rod inserts inside pipe.
3rd step, selects suitable spinning roller, spinning path and tail top pull power and tail top movement velocity, enters high temperature alloy pipes
The mould pressing of row five passage, main shaft drives pipe high-speed motion, and spinning roller axially reciprocating, spinning roller is axially transported along pipe
Dynamic one is back and forth a passage；Spinning roller axially-movable speed be followed successively by 600mm/min, 580mm/min, 560mm/min,
530mm/min, 480mm/min, the monolateral drafts of every time spinning roller is 0.25mm, and tail top is opened from the 3rd passage and executed pipe
(after two passages of mould pressing, the internal diameter of tail plunger tip rod and tube base can form interference fit, and tail top is followed to add axial tension
Pipe rotates together), it is to be understood which passage the motion of tail top can select according to drip molding wall thickness and length
Applying, after the motion of tail top, by pipe axial elongation, the movement velocity controlling tail top reaches to control the effect of wall thickness, pipe
Base is screwed into Φ 10mm from the contracting of diameter of phi 12mm, and thickness is still 1mm.
Note constantly adding in mould pressing position drawing oil in forming process, reduce friction and reduce forming temperature；
4th step, exits spinning roller, unloads lower tail top, takes out the part shaped；
5th step, by obtained part line cutting excision clout, finally gives high temperature alloy reducer pipe.
Embodiment 2
The first step, by long 260mm, diameter 12mm, wall thickness 1mm GH625 high temperature alloy pipes clamping on main shaft,
Measure axial runout, control tubing and be arranged on smoothly on main shaft；
Second step, installs tail top fixing device, limits the axial runout of high temperature alloy pipes, and arranging the speed of mainshaft is
600n/min；
3rd step, selects suitable spinning roller, spinning path and tail pressure on top surface or speed, high temperature alloy pipes is carried out multi-pass
Mould pressing, spinning roller axially-movable speed is followed successively by 580mm/min, 560mm/min, 530mm/min, 480mm/min,
The monolateral drafts of every time spinning roller is 0.25mm, and tail top is opened from the 3rd passage and pipe is applied axial tension, and pipe is from diameter
Φ 12mm contracting is screwed into Φ 10mm.Spinning roller axially-movable speed become successively for 360mm/min, 360mm/min, 400mm/min,
300mm/min, the monolateral drafts of every time spinning roller is 0.25mm, and diameter becomes Φ 8mm, and thickness is still 1mm；
Note constantly adding drawing oil at shaping position in forming process, reduce friction and reduce forming temperature；
4th step, exits spinning roller, unloads lower tail top, takes out the part shaped；
5th step, by obtained part line cutting excision clout, finally gives high temperature alloy reducer pipe.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (6)
1. a high temperature alloy reducer pipe shear spinning forming device, it is characterised in that including: clamping device, rotation
Wheel and tail top, clamping device is for being fixed on main shaft by pipe clamping, and in forming process, pipe is followed main shaft and rotated；
Described spinning roller carries out mould pressing along pipe axially reciprocating to pipe, and spinning roller is back and forth one along pipe axially-movable one
Individual passage；Described tail is top-loaded with plug, and described plug inserts inside pipe, in spin-forming procedure, and described core rod and tube
The internal diameter of base forms interference fit, and described tail top at least starts to provide pulling force for pipe vertically second passage, and it is opened
Begin to provide the passage of pulling force and its axially-movable speed pulling force size to pre-set, by the pulling force on tail top by pipe axle
To elongation, the movement velocity controlling tail top reaches to control the effect of wall thickness.
Device the most according to claim 1 carries out the method for high temperature alloy reducer pipe mould pressing, and its feature exists
In, realized by following comprehensive forming step:
The first step, by high temperature alloy pipes clamping to main shaft, controls tubing and is arranged on smoothly on main shaft；
Second step, installs tail top at pipe tail end, and tail is equipped with plug on top, controls pipe in forming process with tail top
Axial runout；
3rd step, selects suitable spinning roller, spinning path and tail top pull power or speed, high temperature alloy pipes is carried out multi-pass
Mould pressing, at least the second passage, tail backs down the beginning and pipe is applied axial tension, controls the axial flowing of material；
At shaping position oil addition, reduce friction and reduce forming temperature；
4th step, release, opening mold, take out the part shaped；
5th step, by obtained part line cutting excision clout, finally gives high temperature alloy reducer pipe.
Method the most according to claim 2, it is characterised in that: in the 3rd step, tail top axial velocity is controlled,
Pipe is applied axial tension, controls the axial flowing of material.
Method the most according to claim 2, it is characterised in that: the tail top direction of motion and material flow direction one
Cause.
Method the most according to claim 2, it is characterised in that: by tail top, pipe is applied axial tension,
Improve the material stress state when flowing, thus avoid excessive material to thicken or axis bending.
Method the most according to claim 2, it is characterised in that: final drip molding uniform wall thickness and with original mother
The error of material wall thickness is within ± 5%.
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| CN201610304747.5A CN105945117B (en) | 2016-05-10 | 2016-05-10 | A kind of high temperature alloy reducer pipe shear spinning manufacturing process and device |
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| CN201610304747.5A CN105945117B (en) | 2016-05-10 | 2016-05-10 | A kind of high temperature alloy reducer pipe shear spinning manufacturing process and device |
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| CN105945117B CN105945117B (en) | 2017-10-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903205A (en) * | 2017-04-21 | 2017-06-30 | 首都航天机械公司 | A kind of flanged (FLGD) stainless steel seamless pipe spin forming method in termination |
| CN108544185A (en) * | 2018-07-02 | 2018-09-18 | 四川华都核设备制造有限公司 | A kind of thin-wall sleeve processing method |
| CN109622713A (en) * | 2018-12-27 | 2019-04-16 | 华南理工大学 | The compound bent bus bar component room temperature spin forming method of hardly possible deformation nickel base superalloy |
| CN110434177A (en) * | 2019-07-17 | 2019-11-12 | 浙江美亚特精密机械有限公司 | A kind of processing technology thickened for hollow pipe tube reducing |
| CN110548797A (en) * | 2019-09-16 | 2019-12-10 | 芜湖西诺普汽车零部件科技有限公司 | Coreless spinning processing method for large-proportion multi-time reducing hollow shaft |
| CN110587234A (en) * | 2019-09-12 | 2019-12-20 | 宁波金田铜管有限公司 | Processing technology of reducing pipe fitting |
| CN111822573A (en) * | 2020-06-24 | 2020-10-27 | 江苏华阳管业股份有限公司 | Alloy pipe spinning forming process based on ultralow temperature machining |
| CN115318924A (en) * | 2022-10-17 | 2022-11-11 | 四川大学 | Titanium alloy seamless gas cylinder spinning equipment and spinning forming method thereof |
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| JPS5997725A (en) * | 1982-11-26 | 1984-06-05 | Sumitomo Metal Ind Ltd | Method and device for spinning pipe body |
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| CN204974900U (en) * | 2015-09-29 | 2016-01-20 | 西北有色金属研究院 | Thin -walled metal tube spinning device |
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| JPS5997725A (en) * | 1982-11-26 | 1984-06-05 | Sumitomo Metal Ind Ltd | Method and device for spinning pipe body |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106903205A (en) * | 2017-04-21 | 2017-06-30 | 首都航天机械公司 | A kind of flanged (FLGD) stainless steel seamless pipe spin forming method in termination |
| CN106903205B (en) * | 2017-04-21 | 2018-12-21 | 首都航天机械公司 | A kind of flanged (FLGD) stainless steel seamless pipe spin forming method in end |
| CN108544185A (en) * | 2018-07-02 | 2018-09-18 | 四川华都核设备制造有限公司 | A kind of thin-wall sleeve processing method |
| CN109622713A (en) * | 2018-12-27 | 2019-04-16 | 华南理工大学 | The compound bent bus bar component room temperature spin forming method of hardly possible deformation nickel base superalloy |
| CN110434177A (en) * | 2019-07-17 | 2019-11-12 | 浙江美亚特精密机械有限公司 | A kind of processing technology thickened for hollow pipe tube reducing |
| CN110587234A (en) * | 2019-09-12 | 2019-12-20 | 宁波金田铜管有限公司 | Processing technology of reducing pipe fitting |
| CN110548797A (en) * | 2019-09-16 | 2019-12-10 | 芜湖西诺普汽车零部件科技有限公司 | Coreless spinning processing method for large-proportion multi-time reducing hollow shaft |
| CN110548797B (en) * | 2019-09-16 | 2020-07-07 | 芜湖西诺普汽车零部件科技有限公司 | Coreless spinning processing method for large-proportion multi-time reducing hollow shaft |
| CN111822573A (en) * | 2020-06-24 | 2020-10-27 | 江苏华阳管业股份有限公司 | Alloy pipe spinning forming process based on ultralow temperature machining |
| CN115318924A (en) * | 2022-10-17 | 2022-11-11 | 四川大学 | Titanium alloy seamless gas cylinder spinning equipment and spinning forming method thereof |
| CN115318924B (en) * | 2022-10-17 | 2023-01-24 | 四川大学 | Titanium alloy seamless gas cylinder spinning equipment and spinning forming method thereof |
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